I have posted at length about the issues with slow and expensive DC charging, I will have to dig up the threads. I probably should make a blog post. The simple answer is that to support lots and lots of EVs on the road, we need lots and lots of destination charging, ideally sipping energy in a grid friendly way at night. J1772 L2 40-80 amp EVSE's will handle the foreseeable future of BEVs and therefore makes a ton of sense as the ROI is the best, with an install lifespan approaching 15-20 years.
L3 DC charging at 100kW or faster is necessary to have a minimum support for long distance travel. DC charging of any sort is likely not a money maker and subject to a lot of change. Therefore install lifespan is short and cost is high. Factor in the possible amount of EVs supported by the cost and L2 DC charging is a loser. It is very likely that 50 kW DC charge network will look like the 20-24 amp J1772 Blink charge network that was installed at great taxpayer advance. They ended up with slow chargers at the wrong places that no one really used, especially when the costs were charged through, had significant uptime issues, and fell into bankruptcy.
I'll agree that DC FCing is rather expensive and I cared so little about it that my current '13 Leaf that I bought used doesn't even have a CHAdeMO inlet. I'm ok with that. My used Leaf was $9325 + tax and license. Wasn't worth paying $1K to $1.5K extra for the quick charge + LED package so that I could pay much more than it cost to fuel my Prius, have to wait and possibly deal w/adventures of broken or ICEd DC FCs, besides having to take detours to use them.
I'd previously leased a '13 Leaf SV w/both packages so I had CHAdeMO. I used its CHAdeMO inlet about 16 times, all on free DC FCs. There were few free ones then and few now. Most of the ones (all?) I used are now no longer free.
As for J1772 L2 40-80 amp EVSEs, well, other than Tesla-powered vehicles, nobody else is even shipping a BEV or PHEV w/an above 30-amp OBC. Heck, GM is still brain dead w/including a 3.6 kW OBC w/the '16 Volt and not providing an optional higher powered OBC. And, there are still tons of 3.x kW OBC cars shipping, mostly PHEVs.
As for 100 kW DC FCing, well, doesn't seem like anyone besides Tesla's shipping a vehicle that can sustain rates like that. The pre-'16 Leafs ramp down from 50 kW pretty quickly already. 100 kW is useless overkill for them, for now.
You must feel that the 24 kW Combo1 DC FCs from BMW/Bosch are really useless then:
Bosch BMW Announce 24 kW DC Charger For North America At $9,995. They're still being deployed. I've heard of other non-BMW/Bosch Combo1 DC FCs that are only 20-24 kW being deployed.
In Japan with over 5484 CHAdeMO chargers (
CHAdeMO Association), there are apparently "intermediate" chargers, like 10 kW CHAdeMO. See
CHAdeMO Make/Model Review — Using with a Tesla - Page 16 and
CHAdeMO Make/Model Review — Using with a Tesla - Page 16.
There aren't even any PHEVs in the US w/DC FCing capability. And, there are numerous BEVs being sold in the US that also don't have it, not even as an option.