My1
The identity problem is always fun. I mean i don't care who someone is in real life, i only wanna know whether i have the site by the same individual who made something else.
That can be easily and automatically verified (see keybase) and might be more than enough for a lot of things where there are only normal people involved.
It might also be helpful of a given company is more commonly known behind another online entity. Like for example if pewdiepie had a company which he uses for what he does, the link to his yt would be a much greater indicator of validity than some random company name or even his own real name (which not everyone may know).
For pure DVs i think they should be able to issue them themselves. I mean the only thing those prove is domain control and with dnssec+tlsa there's a great way that domain owners can prove that they are in control of the domain and aurhorize a cert, also this lowers the number of trust paths significantly as there is only one possibly trust path over the TLD, and not like 150 CAs from who knows where. Also both the domain owners and the users have less entities they have to trust, as the TLD managers have to be trusted anyway as they ultimately have the full control of their domains,and thereby could make a DV cert themselves over the CAs anyway.
1) hardfail on revocation checks 2) you can't get around any errors generated by an EV 3) you can't fake them by truststore manipulation (except ie and maybe edge) as the ev roots are hard compiled into the browser and not dependent on the external trust store.
Validation would have been a 4th reasons if it wouldn't be for all the obvious problems with it especially lately.
The problem is what people imply or are made to imply from different cert types.
Back in the day people were told to just check for the lock, which obviously is dumb considering now everyone can get a dv for free.
Then with EV CAs told people that sites with ev are more trustworthy. Obviously nonsense considering the excluded usages of EVs in the cabforum documents. EVs are only supposed to make a hard link between an offline and online legal entity, and even that failed with stripe.ian.sh (although that's not exactly the fault of EVs)
EVs now get so much higher implied security that the real vs implied security ratio is obviously very ugly while DVs becoming standard obviously have much more real security than implied (if people check the urlbar correctly)
It just scores you and the dev can punish if needed