Agree there Vic,been recording Whitethroats nests for 30 years myself and as you say never so open.Seems its ok to risk nests if it increases viewing numbers,
The Whitethroat nest showing attempted predation by a snake last week. I may be totally wrong but it appears that foliage around some of the nests that have been featured on Springwatch, now and in the pas,t appear to have been moved so that unobstructed camera shots can be obtained. Having seen a fair number of nest sites for Whitethroat over a period of many years, I haven't seen one that could have been filmed without considerably disturbing the foliage around. All bar one have been in particularly dense bramble/briars, the one exception being on the ground in a nettle patch.
The one featured in this years Springwatch seems to be in a suspiciously open situation as indeed have other nests in the past. I wonder?