Can a telescope be too big?

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First light image shown at the end (spoiler warning): https://www.astrobin.com/ldtzth/

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This video was sponsored by Brilliant.

Table of Contents:
0:00 Intro
1:11 Disclosures
2:08 Why big telescopes?
3:43 Wind
4:33 Seeing
5:44 Tripod legs
6:17 Spongy ground
7:02 Backfocus / tilt
7:41 Brilliant
8:41 Askar 130PHQ overview
10:00 Star tests (OSC)
13:40 Lunar (OSC)
14:31 Mono star tests/ issues
18:07 First light result (LRGB)