No; not enough. A picture with your description of its operation is not a reasonable reference, especially since your opinion is counter to every professional reference I've seen.
There is some grey area here and this answer is not black and white.
It all comes down to cost. PV panels are not a race car, so the cool factor is over. You want it to make you money, and to do that you have to first spend money. This creates a payback period and the efficiency that matters is $ per kWh, with some concern for Aesthetics and PITA factor.
The solar industry is rapidly changing, and just 3 years ago the answer was not the same. Its still not always the same answer. String inverters today are way more flexible.
String Voltage: If you string was on the low end of the MPPT voltage window, or startup voltage window, then bypassing a module or 2 can be catastrophic. However inverters these days have huge windows. I can remember when you really wanted target voltage within 150-200V wide windows. These days you can have inverters that fire between 175VDC and 900VDC with 600V wide MPPT windows. The MPPT technology and multiple channels really makes strings way more flexible than they were in the past. Way less often will a single module shaded or even 3 will take down a string completely.
Design constraints: With High Voltage/Low Current modules (Sunpower) this problem is a bit worse, as each loss of a module is a large portion of a string. When a string had a 200V target window, and your customer didn't buy exactly enough PV to be at the top of the window, then easily losing 1-2 panels can drop MPPT target or even startup voltage.
In exchange you didn't buy a $60-80 piece of electronics and install it on the back of your $200 module, increasing its price by a whopping 20%. How many years will those Optimizers cost to payback? Will they, or if the rest of system dies before your payback then you lost, since you had to mount them and wire them too.
The final consideration is Rapid Shutdown, and I believe most successful DC inverters have a DC keep alive signal (See
Sunspec Compliant Inverters) Then you install a box on the roof one per module or 1 per 2 modules with 80V maximum which accomplishes the rapid shutdown.
There are probably other technologies, but as I have dealt with microinverters mostly for the last few years I am not as close to this as I once was so my knowledge might be a bit old.