My view is that SegWit is a bandaid, not a cure: while it would give Bitcoin some breathing room, it doesn't fix the underlying constraints and is not alone going to solve scaling, hence "muddle through".
That's a not very informed view. Segwit involves segwit, but a very large number of previously pending enhancements that needed a soft fork to activate (core is conservative about any kind of fork) It has dramatic scaling capability due to segwit, it allows lightening network and other solutions to be built on BTC, and in fact, in my opinion will be the last scaling solution BTC ever needs because it will enable unlimited scaling via off chain and side chain transactions.
