I will add that since the learning curve is substantially higher for SPAs, non-technically proficient front-end people (designers or folks who just do HTML/CSS)

I will add that since the learning curve is substantially higher for SPAs, non-technically proficient front-end people (designers or folks who just do HTML/CSS) will constantly bastardize your app; creating 1000 line components, splicing in jQuery, inadvertently creating elements with duplicate IDs. It's been a headache for me at times, and I often feel like I'm the maid cleaning up after people. It's understood that this can also happen in an MPA, but I think the blast radius is much smaller.