I mean, as that reply where he's quoting some other tweet of his shows, he seems to think interest rates ARE price controls.
I think that being pro-institution doesn't necessarily need to be "pro-government", as one can easily support institutions that aren't govt controlled; ex. the church or other religious institutions, or community groups or whatever.
With Dev, however, the issue I consistently see is him waiting for what the govt will say (or at least the Left establishment) and taking their words as "true until shown otherwise", something he doesn't really do for other and institutions. Honestly, when Trump and co. take control of the US govt, I'm gonna want to see how much he takes their words as gospel/"true until proven false."
That, more than anything, will show if he's pro-govt/pro-institution, or just pro-left. Or at least conclusively show it.