According to http://otb-users.37221.n3.nabble.com/otbcli-BandMathX-missing-in-my-OTB-6-6-0-td4030952.html otbcli_BandMathX is not available in the Debian packages because of https://salsa.debian.org/debian-gis-team/otb/blob/master/debian/rules#L56.
It looks like https://packages.debian.org/source/sid/muparserx is available, is there a reason this is still disabled?
