Kawasaki ZX-4RR: ECU SAFE TO FLASH ?

I've been a bit down about my Kawasaki ZX-4R motorcycle, but why? It's the engine yaw, does it have an inherent flaw that could cause it to fail?

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ZX-4RR Mods/Accessories List:
Yoshimura AT2 Street Slip-On
Yoshimura INS-20-K Sound Insert
Woodcraft Frame Sliders
Kawasaki Tank Pad - Part# 99994-1217
BABYFACE Racing Hook
Kawasaki Bolt 6X20 (Reflector Delete) - Part# 92154-0918
Puig Elastic Cargo Net
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Gear I Use:
DJI Action 5 Pro
DJI Mic 2
Insta360 X4
Zoom H1 Essential
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Motorcycle Roster:
2021 Suzuki SV650
2022 Suzuki DR650
2023 BMW R Nine T Urban GS
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Riding Gear:
Schuberth S3 Helmet
Scorpion EXO-AT950 Helmet
Arai XD-4 Helmet
REV'IT! Airwave 3 Jacket
Dainese Super Speed Textile Jacket
REV'IT! Airwave 3 Pants
Dainese York Air Shoes
Klim Induction Gloves
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Chapters:
00:00 - Intro
00:35 - Why I Bought The ZX4RR
02:10 - Why Flash The ECU & Warranty
04:55 - ZX4R Engine Failure Thoughts
09:46 - Kawasaki Communication
10:50 - Selective Engine Repair Rumor
11:38 - ZX4R Owner Actions
14:23 - Not Flashing ECU & Regret
15:00 - Sell or Flash ZX4RR
17:43 - Closing Thoughts