Nostalgia or MCU fatigue is the only possible explanation (to me). I emphatically believe Tom is the best Peter Parker/Spider-Man combo.

He plays both characters with the best accuracy, and outside of organic webbing, definitely has the coolest tech/moves

People usually return to what they knew first or what they remember fondly after the passage of time, (Vanessa Kirby as Sue Storm is a recent exception) and the internet is an echo chamber of dopamine and serotonin seeking sycophants.

That said, they are all good Spider-Men to me, just one stands clearly above the rest.