imagine paying for a full-price luxury club ticket for you and your family to celebrate a special occasion only to see either team get blown out and a manager give up after 5, costing you 4 innings for entertainment and all-you-can-eat-and-drink and cutting your night short by 1.5 hours.
no
Typically, the blowout games take longer, since one team cannot get the other one out. The 15-1 drubbing of the Phillies took 3.35 hours.
MLB could specify a minimum number of innings, say 6 or 7 or 8, and the margin of losing, say 10 runs, and allow the losing manager to end the game at that score. Gamblers' odds would adjust, avoiding spreads of over 10 points.
Teams have come back and won after falling behind by 10 runs. Managers would be reluctant to end games early, especially if the opponent has a weak bullpen.
In the Apr 10, 2019 game, the Nationals didn't get 5 more runs until the 7th inning, raising the score from 10-0 to 15-0. The Nationals had to travel home after this night game ended, and the Phillies had to go on the road.
https://www.baseball-reference.com/boxes/PHI/PHI201904100.shtml