I don't care which methodology they use.
I care whether they are choosing the correct one for what they are doing or they've bought into some semi-religious dogmatic this is the way to do it BS.
I've seen very few projects where waterfall was the right choice, but I've also seen a lot where there was alot of Agile BS where say MoSCoW or Spiral was a better choice.
Most agile ends up as rebranded QAD. I like that no more than I did all the Gatekeeper BS.