To be honest, on the first 10pcs I did not remove the LDO (never had any problem), I only started doing so after Rehius recomanded and after seeing some unexplained problems on Zero boards. Also, on the Zeros we need to remove other things aswell so one more component does not make a difference but for the Tinys I would not go through the trouble. There is really no community feedback that there is a problem there.
As for dat0 adapters I'm with you on that one, much easier to use soldering anchor points than solder mask/glue. But I gathered that if someone wants to go to the trouble of making their own they might add anchor points to this design since all the other measurments are already in the gerber files so it saves you alot of time/trouble.
Cheers