Curiously, the people charged with managing inflation (the Fed, at least here in the U.S.) were not as convinced at the time.
Also, I haven't seen anyone take on the question: should the U.S. government have simply let everyone deal with the economic consequences of COVID without help? And what would the economics of that have looked like?
(It's always fair to point out that federal spending includes unnecessary bloating, BUT it's also fair to point out that government spending bills are necessarily--even when passed with only a single party's support--the result of negotiations; that necessarily will include spending that not everyone agrees is necessary.)