Is the pitch deck culture making founders worse at building businesses?

I've reviewed hundreds of decks as an early-stage fund manager. The decks have gotten better every year. The businesses underneath them haven't kept pace.

My observation: founders optimize for the 5-minute impression. Investors evaluate for the 5-year business. The pitch coaching industry selects for performance over clarity. The best decks I've seen are often less polished — but they answer every investor question before it's asked.

Curious whether others — founders, investors, operators — see the same pattern. Is the deck a useful forcing function or a distraction from the actual work?

I wrote about this here if useful context: [https://www.pitchvault.ai/pitch-intelligence/pitch-deck-performance-vs-business]