If it's curiosity alone that's driving your investigation (rather than an intent to investigate the Mahasi technique with the view to applying it) I'd suggest this...
The path of practice the Buddha taught is the Noble Eightfold Path. If you believe a particular practice/method/technique/activity/exercise supports the fulfilment of that path, then by all means do it - if you believe it doesn't or that there's something that works better for you, then don't do it. Each of the aspects of the Noble Eightfold Path are well detailed by the Buddha, and you can evaluate for yourself
, whether a given activity helps cultivate those components for you
. The important thing is the personal fulfilment of the Noble Eightfold Path.
This is why I'd rather not trade in "criticisms" because "criticisms" infer some kind of independent hands-off objectivity, like a scholarly debate, where there's pros & cons, rights & wrong... whereas I think the important thing in matters like this is actually the subjective element, and how it works for you
. I've explained why Mahasi-vipassana doesn't work for me
personally, but that doesn't constitute a criticism... that only constitutes why it's not for me
. Some people do follow a Mahasi technique and presumably they do so because it works for them
. Whilst I think it's quite obvious from the sum of your two posts that you mean no harm through your investigation, harm can arise unintentionally if people feel that something valuable is being degraded or unjustly criticised, and as you observed, the Mahasi method is often already criticised as it is... therefore, if there's no practical personal application for you in the answers you seek, it might be worth reflecting on the net benefit of the question and whether it's best left set aside in the interests of others.
All the best.