A developer might a good fit somewhere in the company, but that doesn't mean they'll do well everywhere.
I speak from experience: my SA-SRE limbo involved leaving SRE and landing in a role expected to bridge the kernel team to prod, by making their tests work on the things which involve Lots Of Machines (tm). That was a SWE job through and through but it did not give me the ability to transfer out of it until I went through the process last year.
Note that nobody was willing to pull rank and Just Fix Things. That was a sign to me that things had turned pretty bad -- forcing people to jump through hoops like that? Come on.
BTW, for SRE, the interviews are supposed to hit a range of things: sysadmin stuff, coding stuff, debugging/troubleshooting, and so on. At least, the ~100 or so I gave over the years I was there certainly did.
Note that none of the things I asked were "round manhole" type questions. I hate that stuff.
P.S. This is one reason why I'm glad they don't ask sysadmin questions to SWEs. I'm a really shitty sysadmin.