Not for any length of time, as even on lower stakes the mini jackpot is quite frequent, or frequent enough to avoid 87% for the long term, unless very unfortunate. To that end, of the 9.44% I believe the highest part goes into the mini. I suppose you have to view it like the FS on the normal version - 25% of RTP is in the FS, 71% base game so unless you hit the feature that's all you'll get, but the feature pays in such a way that you would be unfortunate not to get at least something back from that 25% pool too.
Could worse, could be the terrible Mega Moolah ones where the base game is around 88-90% inclusive of the JP, or even a Betsoft slot where any jackpot win exceeding peanuts is immediately a 'software error'....