Regarding the bolded part, NO! It would be completely useless for me unless I buy a portable level 2 (208 to 240 volt capable) EVSE. Outside of Tesla, few models (and even smaller % of vehicles) come with a level 2 portable EVSE. Leaf has been my primary car for over 5 years. I have NO level 2 EVSE at all, not even one at home.
Given the above, the vast majority of other EV and PHEV drivers at my work would be in the same boat. Most of the non-Tesla drivers would need to buy a portable L2 EVSE. and we'd all need to remember to bring our several hundred dollar worth L2 EVSE with us. The parking structure at my work is not secured in any way. Even if there were a gate to control cars coming in/out, people can walk right into our parking structure as there's no gate and some portions w/no walls. Our EVSEs could get stolen.
There are too many different 240 volt outlet types (
NEMA connector - Wikipedia), spurring more confusion vs. simply just J1772 (and we have some Tesla wall connectors at work, as well). There's already enough confusion at my work about using the Chargepoint stations (e.g. account, cards, how to get added to our group since our stations are set to restricted) amongst the buildings I work at) vs. the couple of Tesla wall connectors. We have our 70 J1772 handles on ChargePoint amongst the buildings I work at.
ChargePoint lets users see which plugs are open via their map and app. We also receive notifications from ChargePoint about completion, plugout (got unplugged), etc. We can also monitor our charging status (e.g. seeing power level graph for our sessions). Also, I can start sessions for other people.
Our Chargepoint stations are set to restricted so that non-employees can't use them. If we just has outlets, random people could come and leech our electricity. I also don't think we'd want a whole bunch of non-employees having an excuse to hang around our buildings and parking lots, esp. outside working hours.
As for more reliable, well, those 208/240 volt outlets will wear out after too many cycles. Someone has to babysit this and find out which ones are heating up too much and replace them. What about outdoors? IIRC, we have about 36 J1772 handles that are not under cover at all. Many portable EVSEs aren't weatherproof. You also think that people will be comfortable w/unplugging and plugging in (not on the J1772 end) their EVSEs in the rain outdoors?
Many large employers in the Bay Area w/free or paid L2 charging (e.g. Apple, Oracle, Google, Microsoft, etc.) have ChargePoint L2 stations. Employees would be asking our facilities people, why can't we have those convenient solutions instead of a
terrible solution of providing only 240 volt outlets. We have our 400 EVs/PHEVs in our internal registry.
Perhaps you should take a look at
Wayback Machine, if you haven't already.
I use free public L2 J1772 charging about 5 miles from home on Fridays and sometimes on the weekend. I've also used some elsewhere in my city + some others in the Bay Area. It would be damned annoying if they just put some random NEMA 208/240 volt outlet in place instead because of the remembering to bring a multi-hundred $ L2 EVSE and the possible theft issue. I'd also need to carry a bunch of adapters, just in case. (I've seen numerous posts of people having their L1 EVSEs stolen.)
Also, at my work, we have lots of Teslas (over 100 in our registry). NEMA 14-50 outlet would top out at 40 amps max. AFAIK, our Tesla wall connectors are on 100 amp circuits (so 80 amps max). Some of those Tesla drivers complain about Chargepoint being slow (30 amps max). Well... you want the 48, 72 amp and 80 amp OBC guys to max out at 40 amps?