Based upon the described angular resolution of the satellite, absolutely. For E-mode anisotropies. Indeed, if you look at Fig 2.1, you see they've plotted the E-mode anisotropies up to around 4000. But those aren't the primary focus, as the low-multipole B modes are the most critical for new cosmology. What's important for measuring those are:
1) Lots of frequency bands (this requires a satellite)
2) Good control of systematic errors for polarization
The high multipoles are swamped by noise for the B-mode polarization signal, as the B-mode polarization signal is much smaller than the E-mode signal. One of the limiting factors here is that for B-mode polarization, lensing of large scale structure mixes E and B modes, which creates a noise-like signal (this is the "lensing residual"). The instrument noise will still be below this threshold, but we just don't get useful information out of the B-mode spectrum above a hundred or so.
