ok, i'll correct what i said as it was not clear enough;
the big titanium fireworks were cuased because the cars touched the ground. instead of wooden planks, there were skidblocks of titanium which caused these visual effects.
senna might have crashed as a result of bottoming out. the fireworks are proof the cars were running too low and thus bottom out, causing the fireworks.
personally, even though it looks great is some shots, i think these fireworks thus are a negative effect and not a positive addition.
skid blocks on the front wings are useless and totally artificial, again something the sport does not need. it makes me wonder which dangers this might impose; will we get minor effects? i remember fireworks when rosberg's fw failed and was dragged along. did that look spectacular? hmmm not much, it was just wing failure with normal results.
so what will happen when the fw bottoms out? touching the track? i assume the idea is that we will see lots of fireworks. i mean, why put titanium skid blocks on a fw if you don't intend to cuase them to give the effect you want to see.
is the intention thus lots of fireworks at the front during the race? if so, then i assume the skidblocks need to be mount in such manner that they can touch the track surface with quite an ease.
what makes me wonder is the result when they actually do. will we see tiny sparks which makes you say; gosh, that's boring. or can we expect them to intend to show a spark rain? if it is a spark rain; then how will this effect the immediate environment? will it hamper the actual driver himself? will it burn or wear the front tires more? will it be of such effect that it hampers visibility of following or drivers at the side?
and what will it physically do to the front wing [structure] when it touches the ground? is it a minor 'touch' or could it impose sufficient force that it might risk the structural integrity of the front wing - in extremes, cause them to snap?