strongly phrased = powerfully worded?

Context:

Last week, the Breakthrough Institute, based in Oakland, California,
released a strongly phrased analysis that argues that these rebound
effects are so large they could overwhelm many or all of the gains
from energy-efficiency measures (see go.nature.com/m5ky3g). The
advocacy group calls for massive investment in the research and
development of low-carbon energy to counter what it says are over-
optimistic assumptions about what can be accomplished through
greater efficiency.