Wearable Poncho Shelter - A Mistake in Heavy Rain?

Was Using my Poncho as a Shelter during a Heavy Rain Storm a big mistake?
EXPAND FOR LINKS & DETAILS:

Poncho: https://www.military1st.co.uk/10630021-waterproof-poncho-ripstop-flecktarn.html

Stoves: https://outdoorgearessentials.co.uk/collections/x-boil-stoves-bottles

Sleeping bag: https://www.amazon.co.uk/QEZER-Sleeping-Ultralight-Camping-Backpacking/dp/B0CSYXC84H?ref_=ast_sto_dp&th=1

Видео Wearable Poncho Shelter - A Mistake in Heavy Rain? канала Kent Survival