I hear you - but we are talking about a matter of a couple clicks and copying and pasting the account number for the checkout process.
Citi, Fidelity, etc. have significant IT/web development budgets and I’m sure Alliant’s is a rounding error compared to theirs. These type of programs are very difficult to operationalize, especially for a CU. They have had hiccups, but I wasn’t complaining when I was earning 3% back on every purchase (now 2.5%).
I agree that such an array of options is pretty darn sweet.
The OP is correct that the redemption process is clumsy. For me, I’ve gone through it so darn many times I’m just accustomed to the process by now. And the reward is the highest I have on any card, so you gotta take the good with the bad.