I totally understand how that can be psychologically frustrating...BUT we all have cash expenses in our travel and those of us that like to claim it's "free" will use other cash savings from churning related activities to offset those expenses.
Here's some examples of my accounting last year:
- Sea World Trip - Airport Meals, $5.60 x 8 fees for flights, gasoline in rental car - Offset by AMEX Blue Cash Preferred cash back redeemed
- Myrtle Beach Trip - Misc Beach Items (sunscreen, chairs, etc.), Groceries and eating out, Go-Kart tickets - Offset by points redeemed for a target gift card (I allocated the expense to necessities from Target and gave myself a credit against my travel expenses)
- Disney World - $5.60 x 8 fees for flights, Airport Meals - Offset by Gas Savings purchasing VGCs for everyday expenses (I can get 12% back on VGCs at our grocery store - less the $6.95 fee still puts $17 per card in my pocket)
These are just three examples, but anyway that you can generate cash back or savings from this game can be mentally (or in my case literally) accounted for against travel expenses.
- Maybe you could signup for an AMEX Blue Cash card to generate a nice sign up cash bonus if you're over 5/24 or simply are willing to use a slot
- Chase Disney credit cards are offering a $200 statement credit for spending $500 if that make sense as a 5/24 slot for you
- Some people will attribute bank account bonuses to travel (I personally don't account for them this way)
Just some thoughts

I fully realize I'm tying things together that aren't necessarily related, but I like the idea that all churning activities result in free travel and thus Target Gift Cards, and gas saved purchasing VGCs, and a $10 bonus for signing up for paperless billing and anything else I can gain through this game goes into that bucket
EDIT: I just realized I missed some huge ones like
thousands of dollars of AMEX MRs redeemed through Schwab as cash, Citi Prestige TY pts redeemed as cash. These were used to offset Disney Gift Cards I purchased.