What’s the deal with $IHIT borrow fee?

Ok, maybe I'm understanding this completely upside down

$IHIT is an Invesco fund that aims to generate income (I guess via dividends) during the time of its existence, and then return original NAV at termination (Dec 2023)

I have three questions about this one

1. Do they indeed return income via dividend, or is there another mechanism? I see they are returning about a 5% annual dividend
2. The prospectus says the goal is to return original NAV at termination. Original NAV was $9.83 and it's currently trading at $8.55. Is the return to NAV guaranteed and it would generate about 13% from now to December '23 ???
3. This is the weird one, $IHIT has currently an INSANE 1,000% borrow fee. I cannot understand how on earth it would get so much demand to get shorted, it doesn't seem to be a crazy ETF or anything. More strangely, there is a similar fund with termination in 2024 ($IHTA) which behaves more sanely with a 4% borrow fee

Something does not compute here, or otherwise I'm getting a few of these shares, let them get borrowed out (utilization also seems high) and cash on the borrow fee. Assuming my broker gives me a 50% cut of the borrow fee this would yield about 1.3% DAILY on borrow fee alone ?!?!