I've also found that there's been a steady uptick in clients who are having some success with/through their site, and who suddenly do start caring, for all the reason that we are all aware of (performance affecting SEO, bad mobile experience, the 'visual page builder' not being able to do what they want, etc.).
While it's not always fun work, I do think there's a huge market there for 'people like us'.
I'm not sure what a good analogy would be in other businesses, but perhaps it's a bit like someone with a limited budget starting a cafe with IKEA furniture, finding success, and now having both the need and (some) means to actually buy furniture that can handle the demands of cafe use.
And that's not even considering the huge number of potential customers whose Wordpress site got hacked and who need a solution NOW.
What I like most about this situation is that it's not even entirely bad. Perhaps sometimes it does make sense to start a bar with IKEA furniture because the chance of success is so small. I honestly tell many potential clients to not bother paying me for a good, fast site because all they really need at this point is a decent-ish Wordpress theme or Wix/SquareSpace site.
EDIT: I'm not saying Wix specifically would be an option I would suggest to clients. My experience with it hasn't been too good, and I'm sure there's similar and better options.