1) The bot rule is prima facie ridiculous. The speed of play (and of sports bet acceptance, etc) is controlled primarily by 5dimes software, is always controllable primarily by 5dimes software (especially in a game with almost no decisions like this one), and the bot doesn't change the EV of the game.

2) The player very easily could have lost in this scenario. Remember that very-likely-rigged WSEX casino promotion that you (Justin), me, and several other sharp people you know lost like a total of ~50k on in a -3+ sigma result (or, for that matter, rigged live casino blackjack you've run into in your life)? If I ran into a clearly +EV online casino game and hit a -2 or -3 sigma result (never winning a single longshot bet, as in WSEX) at the outset, it's quite possible- and certainly not unreasonable- that I would assume the game was rigged, stop playing, and if you allow the book to seize here, that I would have been freerolled. Also, a player could simply be playing underrolled (people overbetting in this industry? that NEVER happens...) and simply busted his money before he ever went positive. He would also be getting freerolled.

The only way to conclude that he couldn't have lost and that his funds weren't at risk is to only consider the cases where he played long enough, and ran well enough, to be convinced enough that the game was fair and funded enough that he'd reach a long enough term to win. In simpler terms, the only reason this player was "guaranteed to be printing money" is because he, specifically, was printing money. That's not the case, at all, for any random person who decided to bot the game in question. Allowing them to seize here is simply giving them a freeroll due to their own retardation. That's a terrible decision.