Because it doesn't make sense mah.
First batch of NSmen was in 1967.
1960s to 1980s were turbulent times in taiwan, martial law
lasted from 1949 to 1980s.
Where they find taiwanese officers from, when Taiwan was under
the rule of KMT?
Might as well say China helped us?
Maybe not first batch but early batches. The video never said,
the "first" word was my own understanding. Sorry.
In the 3rd part, as per posted printscreens above, the host
directly said Taiwan first helped Singapore.