さはさりながら
Meanings
1
expression, conjunction, adverb
be that as it may; that may be true, but ...; even so, ...
formal or literaryusually written using kana alone
Formal or literary conjunction/adverb used to concede a point before introducing a contrasting statement. Similar to 'nevertheless' or 'however' in English, but with a more classical, written tone.
Be that as it may, there is some truth in his opinion as well.
That may be true, but problems still remain with this plan.