Another feature, that can be considered both an advantage in some cases, and a disadvantage in others, is that MW transactions are multisig by sender AND receiver, and thus require them to interact to build the tx, just as is already the case for Lightning.
Interaction sounds pretty much like a no-go to me, to be honest.
Strange to hear you denounce Lightning just like that...
If Bitcoin is to achieve any sort of mainstream adoption, and actual use as a currency, then most users would be far more familiar with the interactive nature of L2 transactions than the non-interactive nature of L1.