[Nebullis]

Viral delivery systems are commonly used for delivery of specific genes or even proteins. Packaging a large, enveloped virus, in a small capsid, with hopes of viability or pathogenicity is not of concern at this time.

[aruanan]

Packaging a large, enveloped virus, in a small capsid, with hopes of viability or pathogenicity is not of concern at this time.

The question wasn't of large versus small but of the concept of using one viral capsid to deliver the artificially-constructed genome of another virus. Although that may not be a concern at "this time", it should be a concern for a time not too far off.